<?php
require_once ($CFG->dirroot.'/course/moodleform_mod.php');

class mod_forum_mod_form extends moodleform_mod {

	function definition() {

		global $CFG, $COURSE;
		$mform	=& $this->_form;

//-------------------------------------------------------------------------------
		$mform->addElement('header', 'general', get_string('general', 'form'));

		$mform->addElement('text', 'name', get_string('forumname', 'forum'), array('size'=>'64'));
		if (!empty($CFG->formatstringstriptags)) {
			$mform->setType('name', PARAM_TEXT);
		} else {
			$mform->setType('name', PARAM_CLEAN);
		}
		$mform->addRule('name', null, 'required', null, 'client');
		$mform->addRule('name', get_string('maximumchars', '', 255), 'maxlength', 255, 'client');

		$forum_types = forum_get_forum_types();

		asort($forum_types);
		$mform->addElement('select', 'type', get_string('forumtype', 'forum'), $forum_types);
		$mform->setHelpButton('type', array('forumtype', get_string('forumtype', 'forum'), 'forum'));
		$mform->setDefault('type', 'general');

		$mform->addElement('htmleditor', 'intro', get_string('forumintro', 'forum'));
		$mform->setType('intro', PARAM_RAW);
		$mform->addRule('intro', get_string('required'), 'required', null, 'client');
		$mform->setHelpButton('intro', array('writing', 'questions', 'richtext'), false, 'editorhelpbutton');

		$options = array();
		$options[0] = get_string('no');
		$options[1] = get_string('yesforever', 'forum');
		$options[FORUM_INITIALSUBSCRIBE] = get_string('yesinitially', 'forum');
		$options[FORUM_DISALLOWSUBSCRIBE] = get_string('disallowsubscribe','forum');
		$mform->addElement('select', 'forcesubscribe', get_string('forcesubscribeq', 'forum'), $options);
		$mform->setHelpButton('forcesubscribe', array('subscription2', get_string('forcesubscribeq', 'forum'), 'forum'));

		$options = array();
		$options[FORUM_TRACKING_OPTIONAL] = get_string('trackingoptional', 'forum');
		$options[FORUM_TRACKING_OFF] = get_string('trackingoff', 'forum');
		$options[FORUM_TRACKING_ON] = get_string('trackingon', 'forum');
		$mform->addElement('select', 'trackingtype', get_string('trackingtype', 'forum'), $options);
		$mform->setHelpButton('trackingtype', array('trackingtype', get_string('trackingtype', 'forum'), 'forum'));

		$choices = get_max_upload_sizes($CFG->maxbytes, $COURSE->maxbytes);
		$choices[1] = get_string('uploadnotallowed');
		$choices[0] = get_string('courseuploadlimit') . ' ('.display_size($COURSE->maxbytes).')';
		$mform->addElement('select', 'maxbytes', get_string('maxattachmentsize', 'forum'), $choices);
		$mform->setHelpButton('maxbytes', array('maxattachmentsize', get_string('maxattachmentsize', 'forum'), 'forum'));
		$mform->setDefault('maxbytes', $CFG->forum_maxbytes);

		if ($CFG->enablerssfeeds && isset($CFG->forum_enablerssfeeds) && $CFG->forum_enablerssfeeds) {
//-------------------------------------------------------------------------------
			$mform->addElement('header', '', get_string('rss'));
			$choices = array();
			$choices[0] = get_string('none');
			$choices[1] = get_string('discussions', 'forum');
			$choices[2] = get_string('posts', 'forum');
			$mform->addElement('select', 'rsstype', get_string('rsstype'), $choices);
			$mform->setHelpButton('rsstype', array('rsstype', get_string('rsstype'), 'forum'));

			$choices = array();
			$choices[0] = '0';
			$choices[1] = '1';
			$choices[2] = '2';
			$choices[3] = '3';
			$choices[4] = '4';
			$choices[5] = '5';
			$choices[10] = '10';
			$choices[15] = '15';
			$choices[20] = '20';
			$choices[25] = '25';
			$choices[30] = '30';
			$choices[40] = '40';
			$choices[50] = '50';
			$mform->addElement('select', 'rssarticles', get_string('rssarticles'), $choices);
			$mform->setHelpButton('rssarticles', array('rssarticles', get_string('rssarticles'), 'forum'));
		}

//-------------------------------------------------------------------------------
		$mform->addElement('header', '', get_string('grade'));

		$mform->addElement('select', 'assessed', get_string('aggregatetype', 'forum') , forum_get_aggregate_types());
		$mform->setDefault('assessed', 0);
		$mform->setHelpButton('assessed', array('assessaggregate', get_string('aggregatetype', 'forum'), 'forum'));

		$mform->addElement('modgrade', 'scale', get_string('grade'), false);
		$mform->disabledIf('scale', 'assessed', 'eq', 0);

		$mform->addElement('checkbox', 'ratingtime', get_string('ratingtime', 'forum'));
		$mform->disabledIf('ratingtime', 'assessed', 'eq', 0);

		$mform->addElement('date_time_selector', 'assesstimestart', get_string('from'));
		$mform->disabledIf('assesstimestart', 'assessed', 'eq', 0);
		$mform->disabledIf('assesstimestart', 'ratingtime');

		$mform->addElement('date_time_selector', 'assesstimefinish', get_string('to'));
		$mform->disabledIf('assesstimefinish', 'assessed', 'eq', 0);
		$mform->disabledIf('assesstimefinish', 'ratingtime');


//-------------------------------------------------------------------------------
		$mform->addElement('header', '', get_string('blockafter', 'forum'));
		$options = array();
		$options[0] = get_string('blockperioddisabled','forum');
		$options[60*60*24]   = '1 '.get_string('day');
		$options[60*60*24*2] = '2 '.get_string('days');
		$options[60*60*24*3] = '3 '.get_string('days');
		$options[60*60*24*4] = '4 '.get_string('days');
		$options[60*60*24*5] = '5 '.get_string('days');
		$options[60*60*24*6] = '6 '.get_string('days');
		$options[60*60*24*7] = '1 '.get_string('week');
		$mform->addElement('select', 'blockperiod', get_string("blockperiod", "forum") , $options);
		$mform->setHelpButton('blockperiod', array('manageposts', get_string('blockperiod', 'forum'),'forum'));

		$mform->addElement('text', 'blockafter', get_string('blockafter', 'forum'));
		$mform->setType('blockafter', PARAM_INT);
		$mform->setDefault('blockafter', '0');
		$mform->addRule('blockafter', null, 'numeric', null, 'client');
		$mform->setHelpButton('blockafter', array('manageposts', get_string('blockafter', 'forum'),'forum'));
		$mform->disabledIf('blockafter', 'blockperiod', 'eq', 0);


		$mform->addElement('text', 'warnafter', get_string('warnafter', 'forum'));
		$mform->setType('warnafter', PARAM_INT);
		$mform->setDefault('warnafter', '0');
		$mform->addRule('warnafter', null, 'numeric', null, 'client');
		$mform->setHelpButton('warnafter', array('manageposts', get_string('warnafter', 'forum'),'forum'));
		$mform->disabledIf('warnafter', 'blockperiod', 'eq', 0);

//-------------------------------------------------------------------------------
		$features = new stdClass;
		$features->groups = true;
		$features->groupings = true;
		$features->groupmembersonly = true;
		$this->standard_coursemodule_elements($features);
//-------------------------------------------------------------------------------
// buttons
		$this->add_action_buttons();

	}

	function definition_after_data(){
		parent::definition_after_data();
		$mform	 =& $this->_form;
		$type	  =& $mform->getElement('type');
		$typevalue = $mform->getElementValue('type');

		//we don't want to have these appear as possible selections in the form but
		//we want the form to display them if they are set.
		if ($typevalue[0]=='news'){
			$type->addOption(get_string('namenews', 'forum'), 'news');
			$type->setHelpButton(array('forumtypenews', get_string('forumtype', 'forum'), 'forum'));
			$type->freeze();
			$type->setPersistantFreeze(true);
		}
		if ($typevalue[0]=='social'){
			$type->addOption(get_string('namesocial', 'forum'), 'social');
			$type->freeze();
			$type->setPersistantFreeze(true);
		}

	}

	function data_preprocessing(&$default_values){
		if (empty($default_values['scale'])){
			$default_values['assessed'] = 0;
		}

		if (empty($default_values['assessed'])){
			$default_values['ratingtime'] = 0;
		} else {
			$default_values['ratingtime']=
				($default_values['assesstimestart'] && $default_values['assesstimefinish']) ? 1 : 0;
		}
	}

}
?>
